I just started Boyd: The Fighter Pilot Who Changed the Art of War.
Boyd's father died of illness when he was young, and his mother was left to scratch and scrape by desperately with five kids. But Elsie Boyd — John's mother — led her household with such strength and will. I find myself admiring her so much reading this.
The youngest Boyd daughter, Ann, contracted polio, which often consigned the person suffering from it to the wheelchair. Overriding doctors, Elsie insisted her daughter would walk. From the book —
When Elsie brought Ann home, it was clear that neither the operations nor the treatment were of much benefit. Ann wore heavy braces on each leg and could walk only with the assistance of crutches.